Most efforts to control blood pressure are focused on adults, but increasing attention is turning to younger ages since high blood pressure plays a key role in cardiovascular disease, the largest single cause of death globally. Researchers in Sweden used data from eighteen year-olds when they had military health exams. They found higher blood pressures at age eighteen had a higher risk of atherosclerosis in middle age. Even in those with a satisfactory blood pressure of 120/80 showed higher risk in middle age. High blood pressure rarely causes symptoms, but some of the risk factors, such as overweight and poor fitness should be warning signs that development of cardiac issues begins earlier than expected. Details in the journal JAMA Cardiology.